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Finding the Fourth Proportional to 4,382, 6,043.56 and 3,720.56

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Solution

The fourth proportional to 4,382, 6,043.56 and 3,720.56 is: 5,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,382 : 6,043.56 = 3,720.56 : x
  2. Step 2: Convert to fraction form
    4,382/6,043.56 = 3,720.56/x
  3. Step 3: Cross multiply
    4,382x = 6,043.56 × 3,720.56
  4. Step 4: Simplify right side
    4,382x = 22,485,427.59
  5. Step 5: Solve for x
    x = 22,485,427.59/4,382
  6. Step 6: Final answer
    x = 5,131.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.